ReachableCEO
54cc5f7308
- Implements Apache APISIX packaging for Cloudron platform. - Includes Dockerfile, CloudronManifest.json, and start.sh. - Configured to use Cloudron's etcd addon. 🤖 Generated with Gemini CLI Co-Authored-By: Gemini <noreply@google.com>
90 lines
2.8 KiB
Lua
90 lines
2.8 KiB
Lua
--
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-- Licensed to the Apache Software Foundation (ASF) under one or more
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-- contributor license agreements. See the NOTICE file distributed with
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-- this work for additional information regarding copyright ownership.
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-- The ASF licenses this file to You under the Apache License, Version 2.0
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-- (the "License"); you may not use this file except in compliance with
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-- the License. You may obtain a copy of the License at
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--
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-- http://www.apache.org/licenses/LICENSE-2.0
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--
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-- Unless required by applicable law or agreed to in writing, software
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-- distributed under the License is distributed on an "AS IS" BASIS,
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-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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-- See the License for the specific language governing permissions and
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-- limitations under the License.
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--
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local core = require("apisix.core")
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local config_local = require("apisix.core.config_local")
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local is_http = ngx.config.subsystem == "http"
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local ipairs = ipairs
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local error = error
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local dns_client
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local _M = {}
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function _M.nodes(service_name)
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local host, port = core.utils.parse_addr(service_name)
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core.log.info("discovery dns with host ", host, ", port ", port)
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local records, err = dns_client:resolve(host, core.dns_client.RETURN_ALL)
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if not records then
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return nil, err
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end
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local nodes = core.table.new(#records, 0)
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local index = 1
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for _, r in ipairs(records) do
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if r.address then
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local node_port = port
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if not node_port and r.port ~= 0 then
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-- if the port is zero, fallback to use the default
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node_port = r.port
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end
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-- ignore zero port when subsystem is stream
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if node_port or is_http then
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nodes[index] = {host = r.address, weight = r.weight or 1, port = node_port}
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if r.priority then
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-- for SRV record, nodes with lower priority are chosen first
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nodes[index].priority = -r.priority
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end
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index = index + 1
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end
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end
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end
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return nodes
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end
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function _M.init_worker()
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local local_conf = config_local.local_conf()
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local servers = local_conf.discovery.dns.servers
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local resolv_conf = local_conf.discovery.dns.resolv_conf
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local default_order = {"last", "SRV", "A", "AAAA", "CNAME"}
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local order = core.table.try_read_attr(local_conf, "discovery", "dns", "order")
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order = order or default_order
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local opts = {
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hosts = {},
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resolvConf = resolv_conf,
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nameservers = servers,
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order = order,
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}
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local client, err = core.dns_client.new(opts)
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if not client then
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error("failed to init the dns client: ", err)
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return
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end
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dns_client = client
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end
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return _M
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